You can look at some reviews about the GPUs If it was me i would just run my GTX 275 2 i hade to upgrade it
for a build use your GTX275 and HDD
add
quantity of item 1
Sony Optiarc 24X DVD/CD Rewritable Drive Black SATA Model AD-7240S-0B
Sony Optiarc 24X DVD/CD Rewritable Drive Black SATA Model AD-7240S-0B - OEM
Item #: N82E16827118030
Return Policy: Limited Replacement Only Return Policy
Protect Your Investment (expand for options27-118-030|hide options27-118-030)
Service Net Replacement Extended Warranty Plan
The product will be replaced and shipped directly to you at no charge(more info27-118-030.0.18)
* 1 year: $6.99
* 2 year: $11.99
$23.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16827118030
select item 2 quantity of item 2
COOLER MASTER HAF 922 RC-922M-KKN1-GP Black Steel + Plastic and Mesh Bezel ATX Mid Tower Computer Case
COOLER MASTER HAF 922 RC-922M-KKN1-GP Black Steel + Plastic and Mesh Bezel ATX Mid Tower Computer Case - Retail
Item #: N82E16811119197
Return Policy: Standard Return Policy
$20.00 Mail-in Rebate11-119-197
$109.98
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119197
select item 3 quantity of item 3
CORSAIR CMPSU-850HX 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply
CORSAIR CMPSU-850HX 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply - Retail
Item #: N82E16817139011
Return Policy: Standard Return Policy
-$20.00 Instant
$199.99
$179.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011
select item 4 quantity of item 4
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH - Retail
Item #: N82E16820231279
Return Policy: Memory Standard Return Policy
$139.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231279
select item 5 quantity of item 5
ASUS P7P55D-E Pro LGA 1156 Intel P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
ASUS P7P55D-E Pro LGA 1156 Intel P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard - Retail
Item #: N82E16813131621
Return Policy: Limited Replacement Only Return Policy
$189.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131621
select item 6 quantity of item 6
Intel Core i5-750 Lynnfield 2.66GHz LGA 1156 95W Quad-Core Processor Model BX80605I5750
Intel Core i5-750 Lynnfield 2.66GHz LGA 1156 95W Quad-Core Processor Model BX80605I5750 - Retail
Item #: N82E16819115215
Return Policy: CPU Replacement Only Return Policy
-$5.00 Instant
$199.99
$194.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115215
select item 7 quantity of item 7
COOLER MASTER Hyper 212 Plus Intel Core i5 & Intel Core i7 compatible RR-B10-212P-G1 120mm
COOLER MASTER Hyper 212 Plus Intel Core i5 & Intel Core i7 compatible RR-B10-212P-G1 120mm "heatpipe direct contact" Long ... - Retail
Item #: N82E16835103065
Return Policy: Standard Return Policy
$29.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065
select item 8 quantity of item 8
Intel X25-M Mainstream SSDSA2M080G2R5 2.5
Intel X25-M Mainstream SSDSA2M080G2R5 2.5" 80GB SATA II MLC Internal Solid State Drive (SSD) - Retail
Item #: N82E16820167023
Return Policy: Limited Replacement Only Return Policy
$299.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820167023
Subtotal: $1,168.91